SOYO SOYOTM 4

JP40

1JP37

ISA Slots

PCISlots

W83977F

FLASHBIOS

USB1

USB2

COM1

COM2

PS/2

KBCon

PS/2

Mouse

3 1

82439TX

(for586CPUFamily)

W25P240AF

(512Cache)

HDDLEDTBLEDPWRESET

KEY

LOCKPWLED

SPK 1

JP2

JP44

FDCIDE2IDE1

PRT

ATXPWCon.

Figure1-2.MainboardDefault Setting

Important:Makesurethesystemiswell ventilatedto prevent

overheatingandensuresystemstability.

4Introduction

Defaultsettingsareasfollows:P54C/P55C133MHzCPU ,512KPipe-

linedBurstcache,On-boardPCIE-IDE Enabled,2highspeedUA-

RTSEnabled(w/16550FIFO),1EPP/ECPport(ECP+EPP mode),5V

DRAM/3.3V DIMM,andATXpowersupply.

IR1

12 3 4 5 6

SW1

Contents

Main SOYO Table of Contents Chapter 1: Introduction ..................................................... 1 Chapter 2: Hardware Setup.............................................. 5 Page 1 Introduction Key Features 2Introduction Unpacking the Mainboard Electrostatic Discharge Precautions Introduction 3 Mainboard Layout w/ Default Settings ISA Slots PCISlots SW1 82439TX 4 2 Hardware Setup CAUTION : Jumpers JP5: CMOS Clear Jumper JP40: CE Test Jumper Pin Page Hareware Setup 7 CPU Type Configuration Step 1: Frequency Setting 8HardwareSetup Hareware Setup 9 10 Hareware Setup Hareware Setup 11 12 Hareware Setup Hareware Setup 13 Step 2: CPU Single/Dual Voltage Setting 14 Hareware Setup Memory Configuration Hareware Setup 15 Memory Configuration Table RAM Bank Installation Notice Cache Configuration Cache Size and RAM Locations 16 Hardware Setup Multi I/O Port Addresses Connectors PW ATX Power Supply On/Off Switch Connector (Momentary type) COM1, COM2 COM1/COM2 Connectors Hareware Setup 17 JP43: CPU Cooling Fan Connector (12V) 11 20 (SENSOR) (GND) Page Page 3 BIOS Setup BIOS Setup 21 Standard CMOS Setup 22 BIOS Setup BIOS Setup 23 BIOS Features Setup 24 BIOS Setup BIOS Setup 25 26 BIOS Setup Chipset Features Setup BIOS Setup 27 28 BIOS Setup Power Management Setup BIOS Setup 29 30 BIOS Setup BIOS Setup 31 PNP/PCI Configuration Setup 32 BIOS Setup BIOS Setup 33 Load Setup Defaults Load BIOS Defaults 34 BIOS Setup Integrated Peripherals BIOS Setup 35 36 BIOS Setup BIOS Setup 37 Supervisor Password 38 BIOS Setup User Password BIOS Setup 39 IDE HDD Auto Detection Appendix : CPU Setting List Step 1 : Frequency Setting Frequency Setting Continued Step 2 : Voltage Setting Memory Configuration 43 Note for Memory Configuration 1 . Ma 2. DIMM 1 wont support 64MB or 128MB DIMMs with 64Mbit SDRAM 3 . If DIMM Appendix New Features In BIOS